Finding the Fourth Proportional to 78,878,468.10, 108,857,918.67 and 43,595,514.99
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Solution
The fourth proportional to 78,878,468.10, 108,857,918.67 and 43,595,514.99 is: 60,164,923.83
Step by Step Solution
- Step 1: Write the proportion equation
78,878,468.10 : 108,857,918.67 = 43,595,514.99 : x - Step 2: Convert to fraction form
78,878,468.10/108,857,918.67 = 43,595,514.99/x - Step 3: Cross multiply
78,878,468.10x = 108,857,918.67 × 43,595,514.99 - Step 4: Simplify right side
78,878,468.10x = 4,745,717,025,158,186 - Step 5: Solve for x
x = 4,745,717,025,158,186/78,878,468.10 - Step 6: Final answer
x = 60,164,923.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.